Fastening for connecting-rod pins.



-G. E. VAN AUKEN.

FASTENING FOR connno'rme BOD PINS.

PLIOATI0N FILED F3125, 190B.

Patented Mar. 2, 1909.

so for driving the engine will thus he held in i ts UN 1TB T UFlIiItCE.

CLARENCE E. VAN AUKEN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO VAN AUKEN MOTOR dz MACHINE WORKS, OF BRIDGEPORT, FONNEUllCUT, A l'OBlORAlION OF NEW YORK.

FASTENING- FOR CONNECTING-ROD PINS.

No. 913,785. Specification t Letters Patent. Patented March 2, 1909.

Application filed February 25, 1908. Serial No. M1742.

To all whom it may concern: I the connecting-rod-pin is in direct engage- Be it known that I, CLARENCE E. VAX i ment with an integral part of the piston the AUKEN, a citizen of the United Stntes, rcsitllines of force ol the working" impulse will pass ing in Bridgeport, in the county of Feirlield T from the piston to the conneoting-rod di- 5 and State of Connecticut, have invented cerroctly through tho/pin. 60

tnin new and useful Improvements in Fusln et\\'o,(- '(:lo engine the piston, us is well toning-s for Connecting-Rod Pins, ol' Wlil('li known, is employed for controlling the ports the following is o. specification. tor the intake of the gaseous mixture and for This invention relates to improvements in tho oxhnust ol' slu'h n'iixtu-re, ton-other with 1,0 pistons, and has for its object to provide the prodiu'ts ol'comlmstion. .lo the form of 65 means for securing a COIHICCtlI1g-Y0tl to o. pispin sent which comprises at hole through the ton, and for fastening the oonnecti-ngn'ml pin piston walls when the pin comes udjucont to to the piston. the ports :1 lenkug'o will l'roquontly occur. Among the objects sought to he obtained in many inslunees the hole \x'hieh constitutes herein is the provision ol it piston closed 1' the pin sent is horcd through the piston at it 7 throughout its entire cylinder eiigiigiiig fut-e; l pecking ring groove and the pecking ring; is this provides 81 piston through which no loakpluced around the piston 11 t such groove to age can take place and iinprm'einents in the assist in retaining the end ol' the pin in posieonneeting-rod-pin, the sent for this on the tion and preventing the some,oii 'ngring/tl1e piston and a. keeper for fastening thepin on surl'neo ol the (cylinder, lhishoing done .l'or 7 the seat. the protection of the cylinder. Thus it will The piston will have n suitnhle seat for the be seen that, unless the packing hos on it bSO oonnecting-rod-pin which will he so located lute lit with all sides of the grruive, when that the expensive materiel employed in the such groove comes opposite one of the ports cylinder will be prevented from escaping i there will he naturally {L losvgo through the go through the piston. A closed pin sentis l pinysmt. hi the present construction there provided in the outer end ol" the piston, the no oonnnunicetion through the wells of the end opposite that which receives the workpiston from. one side to the other of the ing force of the expensive medium employed piston.

In the diuwings accompanying end for1n- 5 proper place by the piston Without look-ago ing a? port of this spejtienlion Figure .l is 9. through the piston. This may well he no central vertical soetiojnoit a piston i)'1l')O(i'l7 oomplished in o structure employing rt con :1. l'orin of my present impro'vemcnt. Fig. 2 neoting-rod of ordinary form having o cylinis a pm'spoctive View ol the .(mnecting rod 35.drioal bearing for the pin. I pin illustrated in .Figl Fig. 0 is a. per

In the present practice of piston oonsi ruespoctive view of the connerting' rod pin tion the piston chambered out at outfastening inoinlmr illustrated in Fig. 1; and sideend end *ithin this i'jhoinher e we ol 2 Fig. i; is ltcross soul-ion token. in about the the chnneoting-roil "will be located. in deplane of line 1 -4 of 1, lo ti down,

40 Vice oonstructod for embodying my prrsent The piston 7 herein illustrated is such as is improvement this chaniher having, oi course, l'retpientl employed in inloz'nul eonihuson open end, has upon its Well a screw thrrud tion engines. and is provided on. its outside for receiving a muting thread of n. conned-- with r, numlnu' ol pitching ring grooves, ing-rochpin fastening member. The festpndesignated without preference hy the refer- 45 ing member will have recesses for einhrm-m r enoe chin-sets;- R, This piston is formed, as

a. oonncting-rod-pin, and the pin will he men pistons of its class are, substantially flattened at the ends and such flattened porhollow, With e partition 9' located nearer the tion of ill 9 ends rest upon the radially disend ol the piston. wh lich will be exposed to ossd fame of a flange 1i rojecting inwardly the impulses ol the expansive inedunn em- .50 roIn then/all of the chamber, said face being ployed thnn. it is to the open end 10 which is 10.5 directed townrd said open end, and u'pon directed towsrd the outside; in four cycle which face the pin will move iitits rotation engines exposed to the atoms here, and in of the fastening member when this is being; two cycle engines exposed to t 1e or'ank case turned upon the screw thread. The face \vhiol'i is oniploved as the compression chain- 55 may properly be termed a pin seat. When her.- Within the portion ol. the p ston which 12 of the connectingrod berore this is passed structed and adapte is chambered at this outer end, namely the 1 member will bring the pin to its seat at a chamber between the partition 9 and the open I different position to that which it previously end 10, will be received the end of the connectoccupied.

ing rod 11 which carries the pin engaging eye It will be seen that in this improvement 12. The inner wall of the chamber at one the pin will be inserted and removed through place is provided with a screw thread 13 with theopen end of the piston, and that the seat which will engage a mating screw thread 14 for the pin has noconnection with the outupon a connectingrod-pin fastening member side of the piston except through such open 65,- or keeper 15. This keeper or'meniber has a end.

flange portion 16 provided with recesses 17 Having described my invention I claim:

for engaging the ends, as 18, of a connecting- 1. The combination with a piston having rod-pin, as 19. The keeper will be passed a chamber within it provided with an open over the end of the connecting-rod, and the end, and a connecting-rod-pinseat therein connecting-rod-pin will be laced-in the eye facing toward said 0 on end, of a pin cond to seat upon said seat through the open end 10 of the chamber through said open. end and having a cylin- Within the piston. The parts will thus be drical centrally disposed connecting-rod enpassed through this open end, the fastening gaging portionandfiattened seat engagingend member or keeper 15-will be placed in posiportions, and means normally constituted tion with the recesses 17 engaging the ends for removal for holding the pin on said seat.

'18 of the pin, and by rotation of these parts 2. The combination with a piston having together the screw thread 14 will screw a chamber within it provided with an opendown upon the thread 13 and carry the faces 1 end, and a connecting-rod-pin seat therein 20 on the ends of the pin against the face 21 facing. toward said open end, of a pin conof a flange 22, which face 21 constitutes a pin SUUCtUCl and adapted to seat upon said seat seat directed or facing toward the open end through said open end, the interior of said 10., This face is disposed in a radial plane chamber being provided with screw threads, transverse to the longitudinal axis of the pisand a screw threaded keeper thereon for presston, and as the parts, the eye, the pin, and the ing the pin to the seat. fastening member, are rotated the faces 20 3. The combination with a piston having will move over the face 21 until the pin is 'a chamber within it provided with an open securely held to its seat. After the pin has end, a screw thread upon the interior of said been secured upon its seat a punch may be chamber, and a pin seat facing toward said inserted in the hole 23 and the face 21 open end, of a pin constructed and adapted, s otted, afterwhich a set screw, indicated to seat upon said seat through said open end, by the dotted lines 24, may be screwed into and a fastening member having a screw the opening 23 for )reventing the accidental thread for mating ndth the screw thread in turning of the mem er 15. The engagement said chamber and having a portion for emof the faces 20 and 21 holds the pin from bracing the pin for holding the'same to its rotation or oscillation with the movement seat. of the connecting-rod relative to the piston, 4. The combination with a, connectingthus avoiding the wearing away of the pin rod-pin having flattened ends, of a fastening seat and of the pin at its seat engaging pormember having a screw thread upon it and tions. The eye or hearing of the connecting portions fol-engaging the pin adjacent to said rods turns on the pin whichis held from moveflattened ends, and a piston having an open ment relative to the piston. ended chamber, a screw thread for mating The member 15 is shown provided with with the screw thread on said fastenin faces 25 for engaging the face 26 upon the member, and fiat seat disposed in a radia 10 5 ends of the eye 12. This will prevent longiplane to engage said flattened ends of the in tudinal play of such eye; otherwise, lateral and permit movementof tl esamewiththe aspleiy ofthe connecting rod 11. toning member while this is-being turned t is a simple matter to tighten the pin as upon said screw thread.

this may becqme TSYOID. at 0t 1011" E. nection with the piston, and if it is desired to change the angular relation of the piston Nitn esses: v

and its cylinder the face 20 of the pin may be J. H. CRossLEY,

ground down slightly so that "the fastening R. W. CASE. 

